My young Santa Rosa plum tree is being devoured. I can't find any adult or larval insects on the tree that seem like suspects. But this poop is all over the tree. Does anyone recognize it? I'm in south Louisiana. What ever it is, it doesn't bother my Chicksaw plum at all.
Thanks Anne. It's possible, but I rarely see hoppers in the yard. I suspect something nocturnal and larval. I have found a couple cocoons on the tree, but they don't seem very numerous relative to the extent of damage. In the mean time, I will keep a look out for hoppers.